Shelf Support Pin Angle Design to Prevent Aperture Damage and Twisting
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Solution Overview
Problem
Conventional shelf support pegs tend to move and twist within side wall apertures, causing damage and instability, and existing solutions like using screws or angle irons are either complex or cause permanent damage.
Innovation Solution
A shelf support design featuring a pin part and support part with an oblique angle configuration, where the pin part extends from a stopping surface at a specific angle to securely fit into side wall apertures, preventing movement and twisting, and a protrusion on the support part secures the shelf plate without additional fasteners or tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional shelf support pegs are used, then the shelf plate can be supported to the side wall, but the shelf support peg moves and twists inside the side wall aperture causing damage and instability
Solution Approach 1:
The shelf support utilizes asymmetric geometry where the support part has a non-symmetric cross-section that corresponds to the asymmetric shape of the side wall aperture. This asymmetric design prevents the support from rotating or twisting within the aperture, eliminating the harmful movement that causes damage while maintaining secure support of the shelf plate.
Solution Approach 2:
The shelf support incorporates curved or rounded surfaces in its geometry, particularly in the regions that contact the side wall aperture and shelf plate. These curved surfaces distribute contact stresses more evenly, prevent stress concentration that leads to damage, and allow for smooth insertion and secure fitting without sharp edges that could cause harm.
2Reliability
If screws or angle irons are used to fasten the shelf plate, then the shelf plate is securely attached, but the installation becomes complex and requires tools causing permanent damage
Solution Approach 1:
The shelf support is designed as a self-contained component that performs both the support and fastening functions in one piece. The integrated design eliminates the need for separate screws, angle irons, or other fastening elements, allowing the shelf plate to be securely attached through the simple insertion of the support into the aperture without requiring additional tools or complex assembly procedures.
Solution Approach 2:
The invention merges the support function and the fastening function into a single integrated shelf support component. The support part and the aperture-engaging features are combined in one element, eliminating the need for separate fasteners like screws or angle irons, thereby simplifying the installation process while maintaining secure attachment.
3Reliability
If screws are used to fasten the shelf support, then the shelf support is securely attached, but additional fasteners and tools are required increasing complexity
Solution Approach 1:
The shelf support is designed as a self-contained component that performs both the support and fastening functions in one piece. The integrated design eliminates the need for separate screws, angle irons, or other fastening elements, allowing the shelf plate to be securely attached through the simple insertion of the support into the aperture without requiring additional tools or complex assembly procedures.
Data Source
AI summary
The invention relates to a shelf support for supporting a shelf plate and to an arrangement in a shelf. The shelf support comprises a support part arranged to be extending outside of the side wall aperture, a pin part arranged to be inserted into the side wall aperture and a stopping surface provided to the support part. The pin part protrudes from the stopping surface and the stopping surface is arranged to be placed against the side wall surface when the pin part is inserted into the side wall aperture. The pin part further extends from the stopping surface in a pin angle (X, Y) in relation to a direction (A) perpendicular to the stopping surface.


